ulcer

ul·cer

(ŭl′sər)

n.

1. A lesion of the skin or a mucous membrane such as the one lining the stomach or duodenum that is accompanied by formation of pus and necrosis of surrounding tissue, usually resulting from inflammation or ischemia.

2. A corrupting condition or influence.

[Middle English, from Old French ulcere, from Latin ulcus, ulcer-.]

ulcer

(ˈʌlsə)

n

1. (Pathology) a disintegration of the surface of the skin or a mucous membrane resulting in an open sore that heals very slowly. See also peptic ulcer

2. a source or element of corruption or evil

[C14: from Latin ulcus; related to Greek helkos a sore]

ul•cer

(ˈʌl sər)

n.

1. a sore on the skin or a mucous membrane, accompanied by the disintegration of tissue, the formation of pus, etc.

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